Given the data points:
6, 9, 9, 10, 10, 10, 11, 11, 12, 17, 19, 19
Solution
Min: Minimum number in the set of data:

Max: Maximum number in the set of data:

Q1: First quartile of the set of data:
First, we obtain the position of the point using the formula:

Hence,

Q1 is between 9 and 10. Thus:
